Circular island



FIG. 1 is a front perspective view of a circular island showing my new design;

FIG. 2 is a rear perspective view of the circular island;

FIG. 3 is a front plan view of the circular island;

FIG. 4 is a left side plan view of the circular island, the right side plan view is a mirror image of the left side plan view;

FIG. 5 is a rear plan view of the circular island;

FIG. 6 is a top plan view of the circular island; and,

FIG. 7 is a bottom plan view of the circular island.

The broken lines shown herein form no part of the claimed design. 

The ornamental design for a circular island, as shown and described. 